ASTROSAT CZTI

Data Quality Report

Orbit 33103

Creation date: 2024-06-27T20:44:52.732905
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A11_008T06_9000004762_33103cztM0_level2.evt modeM0/AS1A11_008T06_9000004762_33103cztM0_level2_quad_clean.evt
Size (bytes)717,189,12090,633,600
Size684.0 MB 86.4 MB
Events in quadrant A2,467,207684,355
Events in quadrant B3,775,514651,432
Events in quadrant C8,678,944473,378
Events in quadrant D6,468,099590,316

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102892
B0143721
C0291151
D0227321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A489650.102124%
B48964378.925654%
C4896269855.106209%
D489672014.705882%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 6839 4897 0 0 0.00% 0.00%
B 6839 4897 319 319 4.66% 6.51%
C 6839 4897 2142 2142 31.32% 43.74%
D 6839 4897 753 753 11.01% 15.38%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 6 14535 111.96 632 623 124.3
A 13 254 8786 65.7 632 623 124.3
A 7 16 8181 60.83 632 623 124.3
B 5 172 1147840 10172.28 600 587 112.8
B 0 189 123504 1089.86 600 587 112.8
B 0 219 46992 411.46 600 587 112.8
C 8 111 6466269 61265.95 461 466 105.5
C 0 10 116707 1101.43 461 466 105.5
C 7 221 89577 844.36 461 466 105.5
D 7 223 1767222 11709.34 582 571 150.9
D 8 195 890139 5896.04 582 571 150.9
D 12 218 827337 5479.79 582 571 150.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter